Churn



M. C. CROUK.

Churn.

"No. 33,030. Patented Aug. 13,1861.

7433a a I UNITED STATES PATENT OFFICE.

M. O. GRONK, OF AUBURN, NEW YORK.

CHURN.

Specification of Letters Patent No. 33,030, dated August 13, 1861.

To all whom it may concern:

Be it known that I, M. C. CRoNn, of Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Churns; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, in which Figure 1 is a vertical section and Fig. 2 a side elevation.

he nature of my invention consists in the employment and arrangement of certain devices the peculiarities of which will be hereinaftcr fully set forth.

lo enable others skilled in the art to make and use my invention 1 will now describe its construction and operation.

(A) represents a vessel of suitable dimen sions provided near its top with the sheath (52 the object of which will be more fully appreciated hereafter.

(B) represents an adjustable frame.

((5 (Z) are two revolving dasher staves,

each of which is provided with the cog wheels (/L and 72/).

(0) represents the main or center dasher staff, which extends some distance above the top of the churn, as fully shown in the drawings.

(1') represents a cog wheel on stafi (C), and by means of which cog wheels (h h) are operated. The lower end of staff (C) is stepped, between which step and the bottom of frame is the spiral spring (in) (0) represents a circular plate which revolves with the main dasher staff.

(5) is a cross piece on frame (B). In the center of said cross piece ((2) is likewise a circular plate of the same dimensions as plate (6). The rubbing surfaces of each of these plates should be ridged something like the ordinary mill stone, the advantage of which will be more fully seen hereafter.

((0) represents a stationary funnel which surrounds main staff (C) just above the plate formed on the cross piece (50 w m) are dasher boards, so arranged on the three dasher staves that the boards on staves (cl (Z) will revolve in the spaces between the boards on main staff (C) and vice-versa.

(G) represents an u might, shaped as shown in Fig. 2. Said upright is supported by means of sheath (3 and may be easily taken off and again adjusted in place whenever necessary.

(0) represents a shaft, which extends through the upright (G).

is the driving wheel on the end of shaft (0), and which is operated bymeans of crank (p).

(g) represents a small cog wheel on the end of staff (C) which works into the driving cog wheel (0) represents a thumb screw which passes vertically through the upright (G), into the end of main staff (C). a

(K) represents an adjustable funnel for the purpose of conveying the milk to the mouth of the stationary funnel (a).

The operation of my machine is as follows. The frame (B) and top (F), being properly adjusted, motion is given to the dasher staves by means of crank (p). lVhile the machine is in motion. the milk is poured in funnel (K) which conveys it to funnel (a), from thence it descends between the circular plates, which are kept closely pressed together by spiral springs (in), thus grinding as it were the globules of the milk. As it fall from the circular plates the dasher boards by their contrary and rapid revolutions complete in a very short time the operation.

What I claim and desire to secure by Letters Patent is 1. The employment of spiral spring (m) in combination with main dasher staff (C) and circular plate (6), when all shall be operated in the manner and for the purpose specified.

2. The revolving dasher staves (C) and ((Z (Z), frame (B), funnel (a) circular plate (6) and spiral'spring (m) when all shall be arranged in the manner and for the purpose herein set forth and described.

In witness that I claim the foregoing I have hereunto set my hand in the presence of witnesses.

M. C. GRONK.

Witnesses I-Ionaon T. COOK, M. BOYNTON, Jr. 

